| Uruguay Country Quiz | 0 | - | 4.84 | 31,544 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,569 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,160 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,700 |
| North America Map Quiz | 0 | - | 4.98 | 248,169 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,692 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,094 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,603 |
| States of Mexico | 0 | - | 4.95 | 175,770 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,852 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,789 |
| States of Brazil | 0 | - | 4.97 | 87,826 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,226 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,198 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,714 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,039 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,593 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,275 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,518 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,874 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,922 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,487 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,065 |
| Official European Union Languages | 0 | - | 4.97 | 238,332 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,739 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,210 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,411 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,515 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,772 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,509 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,881 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,652 |
| Asia Map Quiz | 0 | - | 4.99 | 915,735 |
| Countries of Africa | 0 | - | 5.00 | 2,533,642 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,737 |
| African East Coast | 0 | - | 4.96 | 95,953 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,772 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,592 |
| Australia Map Quiz | 0 | - | 4.95 | 344,169 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,260 |
| New World Crops | 0 | - | 4.38 | 30,864 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,737 |
| History of Mexico | 0 | - | 4.58 | 15,301 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,326 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,566 |
| Word Chain - South America | 0 | - | 4.51 | 23,889 |
| North American Physical Geography | 0 | - | 4.35 | 30,409 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,889 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,438 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,283 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,620 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,990 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,011 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,624 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,792 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,228 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,937 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,061 |
| The Only European Country ... | 0 | - | 4.91 | 216,327 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,962 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,799 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,838 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,045 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,936 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,364 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,832 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,505 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,139 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,192 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,357 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,861 |
| African Island Countries | 0 | - | 4.96 | 101,529 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,263 |
| Australian States and Territories | 0 | - | 4.96 | 141,822 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,268 |
| Australia True or False | 0 | - | 4.87 | 56,819 |
| Flags of North and South America | 0 | - | 4.99 | 372,543 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,571 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,710 |
| South American Physical Geography | 0 | - | 4.58 | 18,334 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,952 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,978 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,738 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,838 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,149 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,320 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,560 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,099 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,444 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,064 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,317 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,245 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,136 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,980 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,160 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,935 |
| Slavic Countries | 0 | - | 4.96 | 111,576 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,325 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,935 |
| Counties of England | 0 | - | 4.97 | 795,840 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,302 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,637 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,155 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,640 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,070 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,910 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,765 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,406 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,352 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,180 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,833 |
| Countries of the Middle East | 0 | - | 4.96 | 200,960 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,486 |
| States of India | 0 | - | 4.95 | 192,977 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,581 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,314 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,728 |
| The Only African Country ... | 0 | - | 4.99 | 129,035 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,099 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,771 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,947 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,106 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.87 | 56,042 |
| Flags of Oceania | 0 | - | 5.00 | 258,646 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,293 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,319 |
| Australia Country Quiz | 0 | - | 4.43 | 69,563 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,514 |
| Regions of New Zealand | 0 | - | 4.85 | 28,479 |
| The Only American Country ... | 0 | - | 4.92 | 121,502 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,033 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,015 |
| Famous People from South America | 0 | - | 4.15 | 21,943 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,858 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,844 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,988 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,422 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,312 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,407 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,352 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,879 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,873 |
| US States Quiz | 0 | - | 5.00 | 16,854,057 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,785 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,015 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,754 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,391 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,129 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,017 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,454 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,646 |
| Monarchies of Europe | 0 | - | 4.90 | 98,046 |
| European Countries with One Border | 0 | - | 4.97 | 182,655 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,460 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,115 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,069 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,830 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,817 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,279 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,689 |
| States of Germany | 0 | - | 4.96 | 152,258 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,967 |
| Regions of Italy | 0 | - | 4.92 | 75,752 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,043 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,805 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,119 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,261 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,933 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,361 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,684 |
| Champions League Winners | 0 | - | 4.92 | 1,005,578 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,439 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,889 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,178 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,616 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,101 |
| Monarchies of Asia | 0 | - | 4.97 | 71,038 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,826 |
| Provinces of Turkey | 0 | - | 4.95 | 203,874 |
| Provinces of China | 0 | - | 4.97 | 203,987 |
| Japanese Prefectures | 0 | - | 4.98 | 136,640 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,782 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,748 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,201 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,255 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,204 |
| States of India Map Quiz | 0 | - | 4.83 | 26,470 |
| Countries Bordering India | 0 | - | 4.98 | 163,381 |
| Countries Closest to India | 0 | - | 4.97 | 102,712 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,192 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,698 |
| African Great Lakes | 0 | - | 4.82 | 66,138 |
| Every African Country Shape | 0 | - | 4.90 | 87,167 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,538 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,216 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,503 |
| Name a Valid African Country | 0 | - | 4.98 | 153,936 |
